To add more to being able to enter in a number for the breakpoint:
When using RLMP and Button Builder, I know where to the pixel that I want my breakpoint to be in Button Builder. But I have to play with the slider to hit the spot that I need to match the breakpoint settings in RLMP (and the other way around as well) .
This is by far the best reason I can see for being able to enter in numeric values directly into both RLMP and Button Builder (and
all of the other Responsive programs from CoffeeCup).
It makes cross program use much more effective and seamless.
I understand that responsive design is more visual based than strictly numeric based,
but we sometimes know exactly where we need the breakpoint to be and do not want to spend the time moving a slider to hit the exact point we want when working with the various responsive programs you have released and future programs.
I urge you to add this feature into all of the responsive programs.